Abstract: An additive manufacturing apparatus includes: a chamber; a gas supply device that supplies an ambient gas into the chamber; an irradiation device that irradiates a molding region with an energy beam in order to mold a three dimensional molding object, the molding region being provided with a powder bed fusion on which a powder is spread in the chamber; and a controller that performs control related to additive manufacturing of the molding object, wherein the controller is configured to increase a pressure of the ambient gas in the chamber to be higher than an atmospheric pressure when the molding object is molded.

Abstract: An acquisition condition is decided for a second image of improved quality. Values xi resulting from down sampling brightness values of an input first image are accepted by an input layer. A filter is scanned and a convolutional computation performed in a convolutional layer. Outputs z1 to z4 of the convolutional layer and a first image acquisition condition v=(v1, v2, v3, v4) of the first image are accepted by an output layer and a second acquisition condition y is computed by the output layer.

Abstract: There is provided a method for manufacturing a three-dimensional shaped object by a continuous formation of a plurality of solidified layers through a light beam irradiation, the three-dimensional shaped object being provided with a hollow portion in an interior of the shaped object. The manufacturing method performs the formation of the solidified layer by irradiating a raw material with a light beam at the time of suppling the raw material, thereby allowing a sintering of the raw material or a melting and subsequent solidification of the raw material. In particular, a solidified foundation portion is provided as a part of the three-dimensional shaped object, the solidified foundation portion being used for a platform for a formation of a subsequent layer provided as the solidified layer. An orientation of the solidified foundation portion is changed prior to the formation of the subsequent solidified layer.

Abstract: There is provided a more efficient method for manufacturing a three-dimensional shaped object. The method of the present invention comprises a successive formation of a plurality of solidified layers through a light beam irradiation, wherein the solidified layers are provided by a hybrid of combined systems of an after irradiation system and a simultaneous irradiation system, the after irradiation system being such that the light beam irradiation is performed after a formation of a powder layer, the simultaneous irradiation system being such that the light beam irradiation is performed while a raw material is supplied.

Abstract: An acquisition condition is decided for a second image of improved quality. Values x1 resulting from down sampling brightness values of an input first image are accepted by an input layer. A filter is scanned and a convolutional computation performed in a convolutional layer. Outputs z1 to z4 of the convolutional layer and a first image acquisition condition v=(v1, v2, v3, v4) of the first image are accepted by an output layer and a second acquisition condition y is computed by the output layer.

Abstract: There is provided a method for manufacturing a three-dimensional shaped object by a continuous formation of a plurality of solidified layers through a light beam irradiation, the three-dimensional shaped object being provided with a hollow portion in an interior of the shaped object. The manufacturing method performs the formation of the solidified layer by irradiating a raw material with a light beam at the time of suppling the raw material, thereby allowing a sintering of the raw material or a melting and subsequent solidification of the raw material. In particular, a solidified foundation portion is provided as a part of the three-dimensional shaped object, the solidified foundation portion being used for a platform for a formation of a subsequent layer provided as the solidified layer. An orientation of the solidified foundation portion is changed prior to the formation of the subsequent solidified layer.

Abstract: The application relates to a method for manufacturing a three-dimensional shaped object by alternate repetition of a powder-layer forming and a solidified-layer forming, the repetition including: (i) forming a solidified layer by irradiating a predetermined portion of a powder layer with a light beam; and (ii) forming another solidified layer by forming a new powder layer on the formed solidified layer, and irradiating a predetermined portion of the newly formed powder layer with the light beam. A main beam and a sub beam are used as the light beam. The predetermined portion is irradiated with the sub beam prior to an irradiation of the predetermined portion with the main beam, the main beam having an irradiation energy density that melts the predetermined portion of the powder layer and the solidified layer located below the predetermined portion, the sub beam having an irradiation energy density that melts only the predetermined portion.

Abstract: In order to provide a manufacturing method for a three-dimensional shaped object which is capable of obtaining a higher accurate three-dimensional shaped object, there is provided that a method for manufacturing a three-dimensional shaped object by alternate repetition of a powder-layer forming and a solidified-layer forming, the repetition comprising: (i) forming a solidified layer by irradiating a predetermined portion of a powder layer with a light beam, thereby allowing a sintering of the powder in the predetermined portion or a melting and subsequent solidification of the powder; and (ii) forming another solidified layer by forming a new powder layer on the formed solidified layer, followed by irradiation of a predetermined portion of the newly formed powder layer with the light beam, further comprising performing a monitoring for an appearance property of an irradiated spot upon a formation of the solidified layer, the irradiated spot being irradiated with the light beam.

Abstract: There is provided a more efficient method for manufacturing a three-dimensional shaped object. The method of the present invention comprises a successive formation of a plurality of solidified layers through a light beam irradiation, wherein the solidified layers are provided by a hybrid of combined systems of an after irradiation system and a simultaneous irradiation system, the after irradiation system being such that the light beam irradiation is performed after a formation of a powder layer, the simultaneous irradiation system being such that the light beam irradiation is performed while a raw material is supplied.

Abstract: A method for manufacturing a three-dimensional shaped object wherein the warping of the base plate is suitably addressed. The method of the present invention comprises: (i) forming a solidified layer by irradiating a predetermined portion of a powder layer on a base plate with a light beam, thereby allowing sintering of the powder of the predetermined portion or melting and subsequent solidification thereof; and (ii) forming another solidified layer by newly forming a powder layer on the resulting solidified layer, and then irradiating another predetermined portion of the new powder layer with the light beam, the steps (i) and (ii) being repeatedly performed; wherein, prior to or upon the manufacturing of the three-dimensional shaped object, the base plate is subjected to a heat treatment, thereby causing the base plate to be warped, and at least a lower surface of the warped base plate is subjected to a flattening process.

Abstract: An electric connector includes a first connector 2 and a second connector 22. The first connector includes a first contact 4, a second contact 6, a plate like ground plate 8 arranged between the first and second contacts, and a first housing that holds the first contact, the second contact, and the ground plate. The second connector includes a third contact 30 connected to the first contact, a fourth contact 32 connected to the second contact, and a ground metal part arranged at both ends of the third and fourth contacts in a contact array direction and configured to be in contact with the ground plate, and a second housing that holds the third and fourth contacts and the ground metal part. The ground plate includes a projecting portion formed on both side surfaces in the contact array direction and come in contact with the ground metal part.

Abstract: A tube used in a heat exchanger, wherein a tube body includes a curved end portion, a pair of parallel portions, a pair of inclination portions, and a fixed portion in which a long end part extending from one of the pair of inclination portions is bent to hold therebetween a short end part extending from the other of the pair of inclination portions, and the tube is a pipe member having a flattened shape in cross-section. Poor brazing is reduced by making the inclination angle of at least part of the other inclination portion with respect to the flat plate portion larger than that of the one inclination portion.

Abstract: An apparatus for producing a laminated object, includes a powder layer forming unit for forming a powder layer of a powdery material, a material supply unit for feeding the powdery material to the powder layer forming unit; and a solidified layer forming unit for forming a solidified layer by irradiating a light beam on a specified portion of the powder layer and sintering or melting the specified portion of the powder layer. The apparatus is configured to produce an integrally laminated three-dimensional object by repeating formation of the powder layer and formation of the solidified layer. The material supply unit includes a cartridge unit charged with the powdery material, the cartridge unit being configured to allow the powdery material to drop downwards.

Abstract: A manufacturing method of a three-dimensional shaped object is capable of suitably forming a solidified layer by subsequent formation of a powder layer. The manufacturing method according to an embodiment of the present invention is performed by repetition of a powder-layer forming and a solidified-layer forming, the repetition including forming a solidified layer by irradiating a predetermined portion of a powder layer with a light beam, thereby allowing a sintering of the powder in the predetermined portion or a melting and subsequent solidification thereof; and forming another solidified layer by newly forming a powder layer on the resulting solidified layer, followed by the irradiation of a predetermined portion of the powder layer with the light beam, wherein a light-beam condition for an irradiation path with an unirradiated portion on both adjacent sides thereof is different from that for another irradiation path with an irradiated portion at an adjacent region.

Abstract: In the present invention, a battery box is provided on the lower side of a survey meter body so as to protrude downwardly. Four primary batteries are accommodated inside the battery box with inclined postures. A stepped structure is formed between the front surface of the battery box and the lower surface of the body. The survey meter can be held by a hand while an index finger, or the like, is hooked on the stepped structure. It is also possible to remove the battery box and dispose a plate-like secondary battery in an accommodation space.

Abstract: An electric connector includes a first connector 2 and a second connector 22. The first connector includes a first contact 4, a second contact 6, a plate like ground plate 8 arranged between the first and second contacts, and a first housing that holds the first contact, the second contact, and the ground plate. The second connector includes a third contact 30 connected to the first contact, a fourth contact 32 connected to the second contact, and a ground metal part arranged at both ends of the third and fourth contacts in a contact array direction and configured to be in contact with the ground plate, and a second housing that holds the third and fourth contacts and the ground metal part. The ground plate includes a projecting portion formed on both side surfaces in the contact array direction and come in contact with the ground metal part.

Abstract: A method for manufacturing a three-dimensional shaped object, comprising: (i) forming a powder layer on a base plate by a sliding movement of a squeegee blade, followed by forming a solidified layer by irradiating a predetermined portion of the powder layer with a light beam, thereby allowing sintering of the powder of the predetermined portion or melting and subsequent solidification thereof; and (ii) forming another solidified layer by newly forming a powder layer on the resulting solidified layer, and then irradiating another predetermined portion of the new powder layer with the light beam, steps (i) and (ii) being repeatedly performed, wherein machining is performed at least once on an outer surface of a shaped object precursor obtained during manufacturing, and after machining, at least one solidified layer is formed, and followed by upper face machining to remove a raised solidified portion generated at a peripheral edge of the solidified layer.

Abstract: An electric connector includes a first connector 2 and a second connector 22. The first connector includes a first contact 4, a second contact 6, a plate like ground plate 8 arranged between the first and second contacts, and a first housing that holds the first contact, the second contact, and the ground plate. The second connector includes a third contact 30 connected to the first contact, a fourth contact 32 connected to the second contact, and a ground metal part arranged at both ends of the third and fourth contacts in a contact array direction and configured to be in contact with the ground plate, and a second housing that holds the third and fourth contacts and the ground metal part. The ground plate includes a projecting portion formed on both side surfaces in the contact array direction and come in contact with the ground metal part.

Abstract: A method for fabricating a light emitting apparatus in which at least a portion of a light emitting element is covered with a light transmissive resin containing phosphor which emits light when excited by light emitted by the light emitting element, the method including directly processing the phosphor by irradiating the phosphor with a laser beam which passes through the light transmissive resin, to adjust the chromaticity of light to be emitted by the light emitting apparatus.

Abstract: In the present invention, a battery box is provided on the lower side of a survey meter body so as to protrude downwardly. Four primary batteries are accommodated inside the battery box with inclined postures. A stepped structure is formed between the front surface of the battery box and the lower surface of the body. The survey meter can be held by a hand while an index finger, or the like, is hooked on the stepped structure. It is also possible to remove the battery box and dispose a plate-like secondary battery in an accommodation space.